* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
}
html, body {
  margin: 0;
  background: var(--folha);
  color: var(--tinta);
}
body {
  font-family: var(--type-ui);
  font-size: 1.0625rem;
  line-height: 1.6;
  touch-action: manipulation;
}

a { color: inherit; }

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--carimbo);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  background: var(--tinta);
  color: var(--verso);
  padding: 0.6rem 0.9rem;
  z-index: 2;
  text-decoration: none;
}
.skip:focus { top: 0.75rem; }

.desk {
  min-height: 100vh;
  padding: 1.5rem 1.25rem 4rem;
}

.caderno {
  width: min(42rem, 100%);
  margin: 0 auto;
  background: var(--verso);
  box-shadow: var(--shadow);
  border: 1px solid var(--linha);
  padding: 1.75rem 1.5rem 2.75rem 1.85rem;
  border-left: 3px solid var(--tinta);
}

header.top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--linha);
}

.brand {
  font-family: var(--type-ink);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  text-decoration: none;
}

nav.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.15rem;
  font-size: 0.95rem;
}
nav.top-nav a { text-decoration: underline; text-underline-offset: 0.2em; }
nav.top-nav a[aria-current="page"] { font-weight: 600; text-decoration-thickness: 2px; }

h1, h2 {
  font-family: var(--type-ink);
  font-weight: 600;
  letter-spacing: -0.02em;
  text-wrap: balance;
  scroll-margin-top: 1.25rem;
}

h1 {
  font-size: clamp(1.85rem, 4.5vw, 2.5rem);
  line-height: 1.15;
  margin: 2rem 0 0.5rem;
  max-width: 18ch;
}

h2 {
  font-size: 1.35rem;
  line-height: 1.25;
  margin: 3rem 0 0.65rem;
}

.lead {
  color: var(--mute);
  max-width: 42ch;
  margin: 0 0 1.75rem;
}

.ledger {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}
.ledger caption {
  text-align: left;
  font-size: 0.95rem;
  color: var(--mute);
  padding-bottom: 0.55rem;
}
.ledger th,
.ledger td {
  text-align: left;
  padding: 0.7rem 0.4rem 0.7rem 0;
  border-top: 1px solid var(--linha);
  vertical-align: baseline;
}
.ledger th { font-weight: 500; color: var(--mute); }
.ledger .money { text-align: right; font-family: var(--type-ink); font-weight: 700; }
.ledger .who { color: var(--mute); font-size: 0.92rem; }
.stamp {
  font-family: var(--type-ink);
  font-weight: 700;
  color: var(--carimbo);
  letter-spacing: 0.04em;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  margin-top: 1.5rem;
  background: var(--tinta);
  color: var(--verso);
  text-decoration: none;
  padding: 0.7rem 1.15rem;
  font-weight: 600;
  transition: background-color 180ms ease-out;
}
.cta:hover { background: var(--carimbo); }
.cta.quiet {
  background: transparent;
  color: var(--tinta);
  text-decoration: underline;
  text-underline-offset: 0.2em;
  padding-left: 0;
  padding-right: 0;
}
.cta.quiet:hover { background: transparent; color: var(--carimbo); }

.split {
  display: grid;
  gap: 1.5rem;
}
.split ul {
  margin: 0;
  padding-left: 1.1rem;
}
.split li { margin: 0.35rem 0; }

.days {
  list-style: none;
  margin: 0;
  padding: 0;
}
.days li {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 0.75rem;
  padding: 0.7rem 0;
  border-top: 1px solid var(--linha);
}
.days time {
  font-variant-numeric: tabular-nums;
  color: var(--mute);
}

.plan {
  border-top: 1px solid var(--linha);
  border-bottom: 1px solid var(--linha);
  padding: 1rem 0 1.15rem;
}
.plan .name {
  font-family: var(--type-ink);
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 0.35rem;
}
.plan dl {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.45rem 1rem;
  margin: 1rem 0 0;
}
.plan dt { color: var(--mute); }
.plan dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }

.faq {
  border-top: 1px solid var(--linha);
}
.faq details {
  border-bottom: 1px solid var(--linha);
}
.faq summary {
  cursor: pointer;
  list-style: none;
  min-height: 44px;
  display: flex;
  align-items: center;
  font-weight: 600;
}
.faq summary::-webkit-details-marker { display: none; }
.faq details p {
  margin: 0 0 1rem;
  color: var(--mute);
  max-width: 46ch;
}

.legal {
  max-width: 46ch;
}
.legal p { margin: 0.8rem 0; }
.note, .meta {
  color: var(--mute);
  font-size: 0.95rem;
  max-width: 42ch;
}

footer.colophon {
  margin-top: 3.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--linha);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  font-size: 0.95rem;
}
footer.colophon a { text-decoration: underline; text-underline-offset: 0.2em; }

@media (min-width: 880px) {
  .caderno {
    margin-left: 8vw;
    margin-right: auto;
  }
}

@media (min-width: 720px) {
  .desk { padding: 2.5rem 2rem 5rem; }
  .caderno { padding: 2.25rem 2.25rem 3.25rem 2.5rem; }
  .split { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (prefers-reduced-motion: reduce) {
  .cta { transition: none; }
}